Question

ПОМОГИТЕ СРОЧНО !!! ЗАДАНИЕ НА ФОТО

Answer 1

1. 1) Ca + 2NO3 + 2K + CO3 = CaCO3 + 2K + 2NO3 Ca + CO3 = CaCO3 2) 2H + 2NO3 + Ba + 2OH = Ba + 2NO3 + 2H2O 2H + 2OH = 2H2O 3) Ba + 2NO2 + 2K + SO4 = BaSO4 + 2K + 2NO2 Ba + SO4 = BaSO4 4) 2K + CO3 + 2H + 2Cl = 2K + 2Cl + H2O + CO2 CO3 + 2H = H2O + CO2 5) 2Na + CO3 + 2H + SO4 = 2Na + SO4 + H2O + CO2 CO3 + 2H = H2O + CO2 6) 2Na + 2OH + Fe + 2NO3 = Fe(OH)2 + 2Na + 2NO3 2OH + Fe = Fe(OH)2 7) Pb + 2NO3 + 2K + SO4 = PbSO4 + 2K + 2NO3 Pb + SO4 = PbSO4 8) 2Na + SiO3 + Ba + 2OH = BaSiO3 + 2Na + 2OH SiO3 + Ba = BaSiO3 9) Fe + 3Cl + 3Cs + 3OH = Fe(OH)3 + 3Cs + 3Cl Fe + 3OH = Fe(OH)3 10) 3Fe + 3SO4 + 6Na + 2PO4 = Fe3(PO4)2 + 6Na + 3SO4 3Fe+ 2PO4 = Fe3(PO4)2

Answer 2

1.
Ca(NO₃)₂ + K₂CO₃ = CaCO₃ + 2KNO₃
Ca²⁺ + 2NO₃⁻ + 2K⁺ + CO₃²⁻ = CaCO₃ + 2K⁺ + 2NO₃⁻
Ca²⁺ +  CO₃²⁻ = CaCO₃

2HNO₃ + Ba(OH)₂ = Ba(NO₃)₂ + 2H₂O
2H⁺ + NO₃⁻ + Ba²⁺ + 2OH⁻ = Ba²⁺ + 2NO₃⁻ + 2H₂O
H⁺ + OH⁻ = H₂O

Ba(NO₃)₂ + K₂SO₄ = BaSO₄ + 2KNO₃
Ba²⁺ + 2NO₃⁻ 2K⁺ + SO₄²⁻= BaSO₄ + 2K⁺ + 2NO₃⁻
Ba²⁺ + SO₄²⁻= BaSO₄

K₂CO₃ + 2HCl = 2KCl + H₂O + CO₂
2K⁺ + CO₃²⁻ + 2H⁺ + 2Cl⁻ = 2K⁺ + 2Cl⁻ + H₂O + CO₂
CO₃²⁻ + 2H⁺ = H₂O + CO₂

 Na₂CO₃ + H₂SO₄ = Na₂SO₄ + H₂O + CO₂
2Na⁺ + CO₃²⁻ + 2H⁺ + SO₄²⁻ = 2Na⁺ + SO₄²⁻ + H₂O + CO₂
 CO₃²⁻ + 2H⁺ =H₂O + CO₂

2NaOH + Fe(NO₃)₂ = Fe(OH)₂ + 2NaNO₃
2Na⁺ + 2OH⁻ + Fe²⁺ + 2NO₃⁻ = Fe(OH)₂ + 2Na⁺ + 2NO₃⁻
2OH⁻ + Fe²⁺ = Fe(OH)₂

Pb(NO₃)₂ + K₂SO₄ = PbSO₄ + 2KNO₃
Pb²⁺ + 2NO₃⁻ + 2K⁺ + SO₄²⁻ = PbSO₄ + 2K⁺ + 2NO₃⁻
Pb²⁺ + SO₄²⁻ = PbSO₄

Na₂SiO₃ + Ba(OH)₂ = BaSiO₃ + 2NaOH
2Na⁺ + SiO₃²⁻ + Ba²⁺ + 2OH⁻ = BaSiO₃ + 2Na⁺ + 2OH⁻
 SiO₃²⁻ + Ba²⁺ = BaSiO₃

FeCl₃ + 3CsOH = Fe(OH)₃ + 3CsCl
Fe³⁺ + 3Cl⁻ + 3Cs⁺ + 3OH⁻ = Fe(OH)₃ + 3Cs⁺ + 3Cl⁻
Fe³⁺  + 3OH⁻ = Fe(OH)₃

3FeSO₄ + 2Na₃PO₄ = Fe₃(PO₄)₂ + 3Na₂SO₄
3Fe²⁺ + 3SO₄²⁻ + 6Na⁺ + 2PO₄³⁻ = Fe₃(PO₄)₂ +  6Na⁺ + 3SO₄²⁻
 3Fe²⁺ +  2PO₄³⁻ = Fe₃(PO₄)₂

2/
Fe(OH)₂ + 2HNO₃ = Fe(NO₃)₂ + 2H₂O
Fe(OH)₂ + 2H⁺ + 2NO₃⁻ = Fe²⁺ + 2NO₃⁻ + 2H₂O
Fe(OH)₂ + 2H⁺ + = Fe²⁺  + 2H₂O

2Fe(OH)₃ + 3H₂SO₄ = Fe₂(SO₄)₃ + 6H₂O
2Fe(OH)₃ + 6H⁺ + 3SO₄²⁻ = 2Fe³⁺ + 3SO₄²⁻ + 6H₂O
2Fe(OH)₃ + 6H⁺  = 2Fe³⁺ + 6H₂O

MgCO₃ + 2HCl = MgCl₂ + H₂O + CO₂
MgCO₃ + 2H⁺ + 2Cl⁻ = Mg²⁺ + 2Cl⁻ +H₂O + CO₂
MgCO₃ + 2H⁺  = Mg²⁺  +H₂O + CO₂

Cu(OH)₂ + 2HNO₃ = Cu(NO₃)₂ + 2H₂O
Cu(OH)₂ + 2H⁺ + 2NO₃⁻ = Cu²⁺ + 2NO₃⁻ + 2H₂O
 Cu(OH)₂ + 2H⁺ = Cu²⁺  + 2H₂O

2Al(OH)₃ + 3H₂SO₄ = Al₂(SO₄)₃ + 6H₂O
2Al(OH)₃ + 6H⁺ + 3SO₄²⁻ = 2Al³⁺ + 3SO₄²⁻ + 6H₂O
2Al(OH)₃ + 6H⁺  = 2Al³⁺  + 6H₂O

AlCl₃ + 3AgNO₃ = Al(NO₃)₃ + 3AgCl
Al³⁺ + 3Cl⁻ + 3Ag⁺ + 3NO₃⁻ = Al³⁺ + 3NO₃⁻ + 3AgCl
 3Cl⁻ + 3Ag⁺  = Al³⁺ + 3NO₃⁻ + 3AgCl

FeCl₂ + 2AgNO₃ = Fe(NO₃)₂ + 2AgCl
Fe²⁺ + 2Cl⁻ + 2Ag⁺ + 2NO₃⁻ = Fe²⁺ + 2NO₃⁻  + 2AgCl
 2Cl⁻ + 2Ag⁺  =  2AgCl